Detail of GB 30981-2020

Introduction of GB 30981-2020

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. All the technical contents of this standard are mandatory. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 30981-2014 Limit of harmful substances of anticorrosion coatings for construction steel structure. In addition to editorial changes, the following main technical changes have been made with respect to GB 30981-2014: ——The scope of this standard is modified (see Clause 1; Clause 1 of Edition 2014); ——The normative reference GB 24408-2009 is deleted; normative references GB/T 6682-2008, GB/T 9758.5-1988, GB/T 9760-1988, GB/T 23985-2009, GB/T 23986-2009, GB/T 23990-2009, GB/T 23992-2009, GB/T 30647-2014, GB/T 34675-2017, GB/T 34682-2017 and GB/T 36488-2018 are added (see Clause 2; Clause 2 of Edition 2014); ——The definition of “volatile organic compound” is modified; terms and definitions of “engineering machinery”, “agricultural machinery”, “port machinery”, “chemical machinery”, “container”, “package”, “profiles”, “electrical and electronic product”, “pre-coated coil”, “shop primer”, “effect pigment” and “application condition” are added; terms and definitions of “construction steel structure” and “anticorrosion coatings for construction steel structure” are deleted (see Clause 3; Clause 3 of Edition 2014); ——Product classification is modified (see Clause 4; Clause 4 of Edition 2014); ——The “type of coating” of solvent-based coatings and the limit of VOC content are modified (see Table 2; Table 1 of Edition 2014); ——Limits of VOC contents in water-based coatings, solvent-free coatings and radiation-curable coatings are added (see Tables 1, 3 and 4); ——Items and indexes of “total content of toluene and xylene (including ethylbenzene)” and “total content of polycyclic aromatic hydrocarbons” are added (see Table 5); ——“total content of glycol ether (ethylene glycol monomethyl ether and ethylene glycol ethyl ether)” is changed to “total content of glycol ether and ester ether”; the item and index of “benzene content” are modified; the controlled varieties of “total content of halohydrocarbon” and “total content of glycol ether and ester ether” are modified (see Table 5; Table 2 of Edition 2014); ——The requirements of “harmful heavy metals” are changed from "voluntary" to "mandatory" (see Table 5; 5.3 of Edition 2014); ——The test methods for “VOC content”, “benzene content”, “total content of halohydrocarbon”, “methanol content”, “total content of glycol ether and ester ether” and “content of heavy metal” are modified (see 6.2; 6.2 of Edition 2014); ——The test methods for “total content of toluene and xylene (including ethylbenzene)” and “total content of polycyclic aromatic hydrocarbons” are added (see 6.2); ——Implementation of this standard is added (see Clause 9). This standard was proposed by and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China. The previous edition of this standard is as follows: ——GB 30981-2014. Limit of harmful substances of industrial protective coatings 1 Scope This standard specifies the product classification, requirements, test methods, inspection rules, marks for package and implementation of this standard involved in the allowable limit of harmful substances of industrial protective coatings to human body and the environment. This standard is applicable to various industrial protective coatings (except marine coatings) rather than the putty intended to protect metal, concrete, plastic and other surfaces. This standard does not apply to coatings for aerospace, nuclear power, military equipment and facilities. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1725-2007 Paints, varnishes and plastics - Determination of non-volatile-matter content GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods GB/T 6750-2007 Paints and varnishes - Determination of density - Pyknometer method GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9750 Marks for package of coating products GB/T 9758.5-1988 Paints and varnishes - Determination of “soluble” metal content - Part 5: Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form – Diphenylcarbohydrazide spectrophotometric method GB/T 9760-1988 Paints and varnishes - Preparation of acid extracts from paints in liquid or powder form GB/T 23985-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Difference method GB/T 23986-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Gas-chromatographic method GB/T 23990-2009 Determination of the contents of benzene, toluene, ethylbenzene and xylene in coatings by gas chromatography GB/T 23992-2009 Determination of chlorhydrocarbon content in coatings - Gas chromatographic method GB/T 30647-2014 Determination of harmful elements total content of coatings GB/T 34675-2017 Determination of volatile organic compound (VOC) content in radiation curable coatings GB/T 34682-2017 Determination of volatile organic compound (VOC) content in reactive diluent containing coatings GB/T 36488-2018 Determination of polycyclic aromatic hydrocarbons in coatings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 engineering machinery operating machinery and equipment used in the process of comprehensive mechanized construction for earthwork, stonework, concrete work and various construction and installation works Note: For example, industrial vehicles, construction machinery, wiring machinery, municipal sanitation machinery, elevators and escalators, pneumatic tools, etc. 3.2 agricultural machinery machinery used in the process of crop planting and animal husbandry production, as well as in the initial processing and treatment of agricultural and animal products Note: For example, agricultural power machinery, farmland construction machinery, soil cultivating machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, harvesting machinery, agricultural products processing machinery, animal husbandry machinery, agricultural transport machinery, etc. 3.3 port machinery machinery and equipment used for loading or unloading of goods in or from ships at ports, stacking, unstacking and transshipment of goods in warehouses, and handling of goods in cabins, carriages and warehouses Note: For example, hoisting machinery, loading and unloading vehicles, conveying machinery, handling machinery, etc. 3.4 chemical machinery generic term of equipment and facilities used in chemical production Note: For example, chemical machines such as filters, crushers, centrifuges, rotary kilns, mixers, rotary dryers and fluid conveying machines and chemical equipment such as vessels (sinks, tanks, kettles, etc.), ordinary kilns, towers, reactors, heat exchangers, ordinary dryers, evaporators, reaction furnaces, electrolytic cells, crystallizers, mass transfer equipment, adsorption equipment, fluidization equipment, ordinary separation equipment and ion exchange equipment. 3.5 building a space or entity constructed using building materials for people to live and carry out various activities [GB/T 50504-2009, definition 2.1.4] Note: For example, residential buildings, office buildings, plants, warehouses, shopping malls, stadiums, exhibition halls, libraries, hospitals, schools, airports, stations, theaters, churches, etc. 3.6 construction construction entity or auxiliary building facilities constructed for certain purposes, but generally not for direct production and living therein [GB/T 50504-2009, definition 2.1.5] Note: For example, structures such as bridges, iron towers, monument towers, television towers, guardrails, power facilities, petrochemical facilities and offshore facilities. 3.7 container a kind of equipment for transporting goods, which shall meet the following conditions: a) it shall have sufficient strength and stiffness and may be used repeatedly; b) it is suitable for carriage of goods by one or more modes of transportation. During transshipment on the way, the goods in the container do not need to be changed; c) it is equipped with the device facilitating quick loading/unloading and handling, especially the change from one mode of transportation to another one; d) it is convenient for filling up the container with goods and emptying the container; e) it is of 1m3 or more; f) it is designed according to the requirements of ensuring safety and is capable of preventing irrelevant personnel from easily entering. [GB/T 1992-2006, definition 3.1] 3.8 package generic term of vessels, materials and auxiliaries adopted according to certain technical methods for protecting products, facilitating storage and transport and promoting sales during the circulation process Note: For example, beverage cans, food cans, chemical barrels, steel barrels, non-stick pans, etc. 3.9 profiles objects of certain geometrical shapes and made of aluminum, iron or steel and materials with certain strength and toughness by rolling, extrusion, casting and other processes Note: For example, aluminum profiles, plastic profiles, etc. 3.10 electrical and electronic product equipment and supporting products with the rated working voltage not exceeding 1,500V for direct current and not exceeding 1,000V for alternating current that rely on current or electromagnetic fields for operation or are intended to generate, transmit and measure current and electromagnetic fields, excluding the equipment involved in the production, transmission and distribution of electric energy 3.11 pre-coated coil organic materials/metal composite plates sold in rolls or sheets after the coating or laminated plastic film is applied to rolled metal sheets Note: For example, building plates, home appliance plates, etc. 3.12 shop primer (general) a protective coating applied to a workpiece in a shop, followed by a finish paint on site [GB/T 5206-2015, definition 2.232.1] 3.13 effect pigment usually as a flake pigment, which can provide some other performances besides color, such as rainbow color (formed by light interference on a thin layer), different color with angle (color change, color jump, color shade change) or texture [GB/T 5206-2015, definition 2.91]

Contents of GB 30981-2020

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Requirements 6 Test methods 7 Inspection rules 8 Marks for package 9 Implementation of this standard Annex A (Normative) Determination of water content - Gas chromatographic method Annex B (Normative) Determination of the content of hexavalent chromium (Cr6+) - Spectrophotometry Bibliography